So have I! I just wanted to see if anyone has done it recently. Start it up is easy enough. Ramp it up is a little harder, but you get used to it after a few days. Burn it up is worse during the first 20 minutes. I hate the part near the end where you do those leg exercises on all fours and have your leg up in the air for hours it seems without putting it down for a rest. I curse Debbie out on that part every time.
I think the difficulty variance between phases 2 and 3 is greater than that of phases 1 and 2.
I am starting to get used to it though...little by little. Don't get discouraged about it. You can conquer it. One good thing about the dvd is that they stress going at YOUR OWN pace and taking a break when YOU need to. The first time I did it I had to pause it about 5 time and I didn't even finish it. You have to pace yourself. The second time I did it, I paced myself and I did it straight through only pausing once or twice.